A rotary fan with a large rotation angle

Abstract

The present invention discloses a rotating fan with a large rotation angle, comprising a mounting head and a fan head; the mounting head comprises a shell, a first rotating mechanism, the first rotating mechanism comprises a mounting plate, a first gear, a second gear, a stepping motor and a movable part, the first gear is provided with a first connecting part, and the first connecting part is connected to the fan head; the stepping motor is arranged on the mounting plate; the second gear is arranged at the output end of the stepping motor and meshes with the first gear; the mounting plate is provided with an annular part, the movable part can be movably arranged on the annular part, and the annular part is provided with a stop part; the first gear is provided with a linkage groove, the linkage groove is extended along the direction of the annular part, and the movable part is provided with a linkage part, and the linkage part is restricted in the linkage groove; in this way, through the design of the first rotating mechanism, the cooperation of the movable part and the linkage groove is utilized to realize the rotating head of the fan greater than 360 degrees, and in particular, the provision of the stepping motor is beneficial to the use stability of the first rotating mechanism and has a wide range of applications.

Description

Technical Field

[0001] The invention relates to the technology of fan field, in particular to a rotating fan with a large rotation angle. Background Art

[0002] With the advancement of science and technology and the development of civilization, modern people know how to use various inventions and creations to change the quality of life and make life more comfortable and convenient. For example, in the hot summer weather, many people use electric fans at home to replace the old way of using fans. In fact, the types and structures of electric fans are constantly changing with people's needs, and the performance of products is also improving day by day. Electric fans are referred to as electric fans, also known as fans and fan machines. They are devices that use electricity to generate airflow. The fan blades configured inside are energized and then rotated to form natural wind to achieve the effect of cooling off. They are mainly used for cooling off and circulating air. Their fans are widely used in homes, classrooms, offices, shops, hospitals, hotels and other places. During use, traditional electric fans can only form a fixed air supply range, and the angle is not large enough to meet the user experience. Later, a kind of electric fan that can rotate at a large angle appeared on the market, but its structural design is complex, the workmanship is complex, the cost is high, and it is not convenient for the subsequent repair and maintenance of the electric fan.

[0003] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the invention

[0004] In view of this, the present invention aims to solve the deficiencies in the prior art, and its main purpose is to provide a rotating fan with a large rotation angle. Through the design of a first rotating mechanism, the cooperation of a movable part and a linkage groove is utilized to realize a rotation and shaking of the fan greater than 360 degrees. In particular, the provision of a stepper motor is beneficial to the use stability of the first rotating mechanism and has a wide range of applications.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A rotary fan with a large rotation angle comprises a mounting head and a fan head arranged on the mounting head; wherein: the mounting head comprises a shell and a first rotating mechanism arranged on the shell, the first rotating mechanism comprises a mounting plate, a first gear, a second gear, a stepping motor and a movable part, the first gear is movably arranged on the mounting plate, a first connecting part is arranged in the middle of the first gear, and the first connecting part passes through the mounting plate and the shell and is connected with the fan head; the stepping motor is arranged on the mounting plate; the second gear is arranged on the output end of the stepping motor and meshes with the first gear; an annular part is arranged on the mounting plate, the movable part is movably arranged on the annular part, and a stopper is arranged on the annular part; a linkage groove is arranged on the first gear, and the linkage groove is extended along the direction of the annular part, and a linkage part is arranged on the movable part, and the linkage part is limited in the linkage groove;

[0007] When in use, the stepper motor controls the second gear to rotate in the first direction, thereby driving the first gear to rotate in the first direction. One end of the linkage groove contacts the linkage part under the control of the first gear, and links the movable part to move from one end of the stop part of the annular part in the first direction. The movable part moves to the other end of the stop part, and the stepper motor controls the second gear to stop rotating in the first direction; then, the stepper motor controls the second gear to rotate in the second direction, thereby driving the first gear to rotate in the second direction. The other end of the linkage groove rotates to the linkage part under the control of the first gear, and links the movable part to move from the other end of the stop part of the annular part in the second direction. The movable part moves to one end of the stop part, and the stepper motor controls the second gear to stop rotating in the second direction; then, the stepper motor controls the second gear to rotate in the first direction again, and the cycle is repeated.

[0008] As a preferred solution, the mounting plate is provided with a first groove matching the first gear, the first gear is arranged in the first groove, and the annular portion and the stopper portion are both arranged in the first groove;

[0009] The mounting plate is provided with a second groove matching the second gear, the second groove is located at one side of the first groove and communicated with the first groove, and the second gear is arranged in the second groove.

[0010] As a preferred solution, a chamber is provided in the shell, the rotating mechanism is provided in the chamber, a first PCB board is provided in the chamber, the first PCB board is located on one side of the rotating mechanism, and the first PCB board is connected to the stepping motor and the fan head.

[0011] As a preferred solution, a first mounting surface is provided on the housing, a second mounting surface matching the first mounting surface is provided on the fan head, and the first connecting portion passes through the first mounting surface and is connected to the second mounting surface of the fan head.

[0012] As a preferred solution, both the first mounting surface and the second mounting surface are inclined surfaces.

[0013] As a preferred solution, the lower end of the mounting head is connected to a base.

[0014] As a preferred solution, the mounting head is rotatably disposed on the base via a second rotating mechanism.

[0015] As a preferred solution, a connecting rod is provided between the mounting head and the base, the upper end of the connecting rod is connected to the mounting head, and the lower end of the connecting rod is connected to the second rotating mechanism and provided on the base.

[0016] As a preferred solution, a control panel is arranged on the base, and the control panel has a second PCB board, and the second PCB board is connected to the first PCB board.

[0017] As a preferred solution, the connecting rod is a telescopic rod.

[0018] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that the fan can rotate and shake more than 360 degrees by designing the first rotating mechanism and utilizing the cooperation between the movable part and the linkage groove. In particular, the setting of the stepping motor is conducive to the stability of the first rotating mechanism. The structural design is ingenious and reasonable, reliable and stable, and has a wide range of applications.

[0019] Secondly, the first mounting surface and the second mounting surface are both inclined surfaces, so that the fan head blows air from bottom to top when rotating, which is conducive to the fan head blowing air in directions of different heights to meet the user's use needs. At the same time, the setting of the second rotating mechanism enables the fan head to rotate and shake in the horizontal direction, thereby realizing the fan head blowing air at multiple angles;

[0020] In addition, the setting of the control panel can adjust the first rotating mechanism and the second rotating mechanism on the control panel according to usage requirements, so as to meet the user's requirements for blowing air at different angles. At the same time, the connecting rod is set as a telescopic rod to meet the use of the rotating fan at different heights, and can also reduce the space occupied by the product when not in use, which is beneficial for users to store the product and has good usability.

[0021] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention;

[0023] Figure 2 is a cross-sectional view of an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 A first partial enlarged schematic diagram of the structure shown;

[0025] Figure 4 yes Figure 2 a second partial enlarged schematic diagram of the structure shown;

[0026] Figure 5 is a schematic diagram of a mounting head according to an embodiment of the present invention (the rear housing is not shown in the figure);

[0027] Figure 6 Schematic diagram of a base according to an embodiment of the present invention.

[0028] Description of the accompanying drawings:

[0029] 10. Mounting head 11. Shell

[0030] 111, chamber 112, front shell

[0031] 113. Back shell 114. Buckle hole

[0032] 12. First rotating mechanism 121. Mounting plate

[0033] 122, first gear 123, second gear

[0034] 124. Stepper motor 125. Moving parts

[0035] 126. first connecting portion 127. annular portion

[0036] 128, stopper 129, linkage groove

[0037] 1210, linkage portion 1211, first groove

[0038] 1212, second groove 13, first PCB board

[0039] 14. Handle 20. Fan head

[0040] 30. Base 301. Installation cavity

[0041] 31. Second rotating mechanism 311. Third gear

[0042] 312. fourth gear 313. driving device

[0043] 314, fixing plate 315, second connecting portion

[0044] 32. Control panel 321. Second PCB board

[0045] 33. Locking mechanism 40. Connecting rod

[0046] 41. Telescopic rod. DETAILED DESCRIPTION

[0047] Please refer to Figures 1 to 6 As shown, it shows the specific structure of an embodiment of the present invention.

[0048] A rotary fan with a large rotation angle includes a mounting head 10 and a fan head 20 disposed on the mounting head 10; wherein:

[0049] The mounting head 10 includes a housing 11 and a first rotating mechanism 12 disposed on the housing 11. The first rotating mechanism 12 includes a mounting plate 121, a first gear 122, a second gear 123, a stepping motor 124 and a movable member 125. The first gear 122 is movably disposed on the mounting plate 121. A first connecting portion 126 is disposed in the middle of the first gear 122. The first connecting portion 126 passes through the mounting plate 121 and the housing 11 to connect with the fan head 20.

[0050] The stepper motor 124 is disposed on the mounting plate 121 ; the second gear 123 is disposed at the output end of the stepper motor 124 and meshes with the first gear 122 ;

[0051] The mounting plate 121 is provided with an annular portion, the movable member 125 is movably provided on the annular portion, and a stopper 128 is provided on the annular portion. Here, both ends of the stopper 128 have convex arc surfaces, and both ends of the movable member 125 are provided with concave arc surfaces, and the concave arc surfaces are adapted to be positioned on the convex arc surfaces, so as to achieve stopper positioning between the stopper 128 and the movable member 125;

[0052] The first gear 122 is provided with a linkage groove 129, and the linkage groove 129 is extended along the direction of the annular portion. The movable member 125 is provided with a linkage portion 1210, and the linkage portion 1210 is limited in the linkage groove 129;

[0053] When in use, the stepper motor 124 controls the second gear 123 to rotate in the first direction, thereby driving the first gear 122 to rotate in the first direction. One end of the linkage groove 129 contacts the linkage portion 1210 under the control of the first gear 122, and links the movable member 125 to move from one end of the stop portion 128 of the annular portion in the first direction. The movable member 125 moves to the other end of the stop portion 128, and the stepper motor 124 controls the second gear 123 to stop rotating in the first direction. Then, the stepper motor 124 controls the second gear 123 to rotate in the second direction, thereby driving the first gear 122 to rotate in the second direction. The other end of the linkage groove 129 is turned to the linkage portion 1210 under the control of the first gear 122. At the moving part 1210, the movable part 125 is linked to move from the other end of the stop part 128 of the annular part along the second direction. The movable part 125 moves to one end of the stop part 128, and the stepper motor 124 controls the second gear 123 to stop rotating in the second direction; then, the stepper motor 124 controls the second gear 123 to rotate in the first direction again, and the cycle is repeated. In this way, through the design of the first rotating mechanism 12, the cooperation between the movable part 125 and the linkage slot 129 is utilized to realize the fan's rotation and shaking of more than 360 degrees. In particular, the provision of the stepper motor 124 is beneficial to the use stability of the first rotating mechanism 12, and the structural design is ingenious and reasonable, reliable and stable, and has a wide range of applications.

[0054] In this embodiment, a chamber 111 is provided in the housing 11, the rotating mechanism is provided in the chamber 111, a first PCB board 13 is provided in the chamber 111, the first PCB board 13 is located on one side of the rotating mechanism, and the first PCB board 13 is connected to a stepping motor 124 and a fan head 20; here, a first mounting surface is provided on the housing 11, a second mounting surface matching the first mounting surface is provided on the fan head 20, the first connecting portion 126 passes through the first mounting surface and is connected to the second mounting surface of the fan head 20, and a distance is maintained between the first mounting surface and the second mounting surface;

[0055] The shell 11 includes a front shell 112 and a rear shell 113, the chamber 111 is formed in the area enclosed by the assembly of the front shell 112 and the rear shell 113, the first mounting surface is arranged at the front end of the front shell 112, and the second mounting surface is arranged at the rear side of the lower end of the fan head 20; and the front shell 112 and the rear shell 113 are snap-fit ​​assembly connection, one of the front shell 112 and the rear shell 113 is provided with a buckle portion, and the other is provided with a buckle hole 114, the buckle portion is adapted to the buckle hole 114 to realize the assembly connection of the front shell 112 and the rear shell 113, and the first PCB board 13 is fixedly connected to the front shell 112; preferably, the first mounting surface and the second mounting surface are both inclined surfaces extending obliquely upward from front to back; in this way, the fan head 20 blows air from bottom to top when rotating, which is conducive to the fan head 20 blowing air in directions of different heights to meet the user's usage needs.

[0056] Furthermore, the mounting plate 121 is provided with a first groove 1211 matching the first gear 122, the first gear 122 is disposed in the first groove 1211, and the annular portion and the stopper 128 are both disposed in the first groove 1211;

[0057] The mounting plate 121 is provided with a second groove 1212 matching the second gear 123 . The second groove 1212 is located at one side of the first groove 1211 and communicates with the first groove 1211 . The second gear 123 is disposed in the second groove 1212 .

[0058] In this embodiment, the lower end of the mounting head 10 is connected to the base 30, and the mounting head 10 is rotatably set on the base 30 through a second rotating mechanism 31. A connecting rod 40 is set between the mounting head 10 and the base 30, and the upper end of the connecting rod 40 is connected to the mounting head 10, and the lower end of the connecting rod 40 is connected to the second rotating mechanism 31 and is set on the base 30.

[0059] The base 30 has an installation cavity 301, and the second rotating mechanism 31 is arranged in the installation cavity 301. The second rotating mechanism 31 includes a third gear 311, a fourth gear 312, a driving device 313 and a fixed plate 314. The third gear 311 is rotatably arranged on the fixed plate 314, and a second connecting portion 315 is arranged in the middle of the third gear 311. The lower end of the connecting rod 40 extends into the installation cavity 301 and is connected to the second connecting portion 315. The fourth gear 312 is meshed with the third gear 311 and is arranged on the fixed plate 314. The driving device 313 is a stepping motor 124, and the driving device 313 is driven and connected to the fourth gear 312; in addition, the connecting rod 40 and the second connecting portion 315 are arranged on the base 30 through a locking mechanism 33.

[0060] A control panel 32 is provided on the base 30, and the control panel 32 has a second PCB board 321. The second PCB board 321 is connected to the first PCB board 13. By adding a rotation angle of 30 / 60 / 90 / 180 / 365 on the control panel 32, the first rotating mechanism 12 and the second rotating mechanism 31 can be rotated and adjusted on the control panel according to usage requirements, thereby meeting the user's blowing requirements at different angles.

[0061] In addition, the connecting rod 40 is a telescopic rod, and the connecting rod 40 includes a plurality of telescopic rod portions 41 connected in sequence. The telescopic rod portions 41 are gradually reduced from bottom to top. The upper end of the uppermost telescopic rod portion 41 is connected to the mounting head 10, and the lower end of the lowermost telescopic rod portion 41 is connected to the second connecting portion 315 and is disposed in the mounting cavity 301.

[0062] Preferably, a handle 14 is provided on the housing 11 to facilitate users to move the product.

[0063] The design focus of the present invention is that it mainly realizes the fan's rotation and shaking of more than 360 degrees by designing the first rotating mechanism and utilizing the cooperation between the movable part and the linkage groove. In particular, the setting of the stepping motor is conducive to the use stability of the first rotating mechanism. The structural design is ingenious and reasonable, reliable and stable, and has a wide range of applications.

[0064] Secondly, the first mounting surface and the second mounting surface are both inclined surfaces, so that the fan head blows air from bottom to top when rotating, which is conducive to the fan head blowing air in directions of different heights to meet the user's use needs. At the same time, the setting of the second rotating mechanism enables the fan head to rotate and shake in the horizontal direction, thereby realizing the fan head blowing air at multiple angles;

[0065] In addition, the setting of the control panel can adjust the first rotating mechanism and the second rotating mechanism on the control panel according to usage requirements, so as to meet the user's requirements for blowing air at different angles. At the same time, the connecting rod is set as a telescopic rod to meet the use of the rotating fan at different heights, and can also reduce the space occupied by the product when not in use, which is beneficial for users to store the product and has good usability.

[0066] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A rotary fan with a large rotation angle, characterized in that: The fan head comprises a mounting head and a fan head arranged on the mounting head; wherein: the mounting head comprises a shell and a first rotating mechanism arranged on the shell, the first rotating mechanism comprises a mounting plate, a first gear, a second gear, a stepping motor and a movable part, the first gear is movably arranged on the mounting plate, a first connecting part is arranged in the middle of the first gear, and the first connecting part passes through the mounting plate and the shell and is connected with the fan head; the stepping motor is arranged on the mounting plate; the second gear is arranged on the output end of the stepping motor and meshes with the first gear; an annular part is arranged on the mounting plate, the movable part is movably arranged on the annular part, and a stopper is arranged on the annular part; a linkage groove is arranged on the first gear, and the linkage groove is extended along the direction of the annular part; a linkage part is arranged on the movable part, and the linkage part is limited in the linkage groove; When in use, the stepper motor controls the second gear to rotate in the first direction, thereby driving the first gear to rotate in the first direction. One end of the linkage groove contacts the linkage part under the control of the first gear, and links the movable part to move from one end of the stop part of the annular part in the first direction. The movable part moves to the other end of the stop part, and the stepper motor controls the second gear to stop rotating in the first direction; then, the stepper motor controls the second gear to rotate in the second direction, thereby driving the first gear to rotate in the second direction. The other end of the linkage groove rotates to the linkage part under the control of the first gear, and links the movable part to move from the other end of the stop part of the annular part in the second direction. The movable part moves to one end of the stop part, and the stepper motor controls the second gear to stop rotating in the second direction; then, the stepper motor controls the second gear to rotate in the first direction again, and the cycle is repeated.

2. A rotary fan with a large rotation angle according to claim 1, characterized in that: The mounting plate is provided with a first groove matching the first gear, the first gear is arranged in the first groove, and the annular portion and the stopper portion are both arranged in the first groove; The mounting plate is provided with a second groove matching the second gear, the second groove is located at one side of the first groove and communicated with the first groove, and the second gear is arranged in the second groove.

3. A rotary fan with a large rotation angle according to claim 1, characterized in that: A chamber is arranged in the shell, the rotating mechanism is arranged in the chamber, a first PCB board is arranged in the chamber, the first PCB board is located at one side of the rotating mechanism, and the first PCB board is connected to the stepping motor and the fan head.

4. A rotary fan with a large rotation angle according to claim 1, characterized in that: The housing is provided with a first mounting surface, the fan head is provided with a second mounting surface matching the first mounting surface, and the first connecting portion passes through the first mounting surface and is connected to the second mounting surface of the fan head.

5. A rotary fan with a large rotation angle according to claim 4, characterized in that: The first mounting surface and the second mounting surface are both inclined surfaces.

6. A rotary fan with a large rotation angle according to claim 1, characterized in that: The lower end of the mounting head is connected with a base.

7. A rotary fan with a large rotation angle according to claim 6, characterized in that: The mounting head is rotatably arranged on the base through a second rotating mechanism.

8. The rotary fan with a large rotation angle according to claim 7, characterized in that: A connecting rod is arranged between the mounting head and the base, the upper end of the connecting rod is connected to the mounting head, and the lower end of the connecting rod is connected to the second rotating mechanism and arranged on the base.

9. The rotary fan with a large rotation angle according to claim 7, characterized in that: The base is provided with a control panel, wherein the control panel has a second PCB board, and the second PCB board is connected to the first PCB board.

10. The rotary fan with a large rotation angle according to claim 8, characterized in that: The connecting rod is a telescopic rod.

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